Advertisements
Advertisements
प्रश्न
Which part of the brain maintains posture and equilibrium of the body?
Advertisements
उत्तर
Cerebellum, a part of hindbrain is responsible for maintaining posture and equilibrium of the body.
संबंधित प्रश्न
How do we detect the smell of an agarbatti (incense stick)?
Briefly explain the following terms : Reflex action
Which part of the eye contains cells which are sensitive to light?
What is spinal cord? What is its main function?
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the smell of the food?
Cerbellum, medulla and pons are the parts of :
(a) mid-brain
(b) hind-brain
(c) forebrain
(d) spinal cord
The part of brain which controls the involuntary action such as heart beat, breathing, blood pressure, etc. is :
(a) pons
(b) medulla
(c) cerebrum
(d) cerebellum
When we touch a hot plate unknowingly, then this heat is sensed by a receptor P present in our fingers. The receptor triggers and impulse in neuron Q which transmits the message to an organ R which is a part of the central nervous system. Here the impulse is passed on to a neuron S which in turn passes it to a yet another neuron T. The neuron T passes the impulse to a tissue U in our arm. The tissue U then contracts and pulls our hand away from the hot plate.
(a) What is the name of (i) receptor P (ii) neuron Q, and (iii) organ R?
(b) What is (i) neuron S, and (ii) neuron T?
(c) Name the tissue U.
(d) What name is given to the phenomenon in which hand is pulled away quickly from the hot plate?
(e) Name the effector in this whole process.
Differentiate between natural reflex and conditioned reflex. Give examples to illustrate your answer.
Two hungry boys (A and B) enter a restaurant and find a table decorated as follows:
Boy B starts salivating but not A. Explain the reason for this difference.
Define the following:
Reflex action
State whether the following is
Constriction of pupil
State whether the following is
Blinking
What type of reflex is the following?
Solving mathematical sums
Give Technical Term:
The scientist, who conducted experiment on a dog to show conditioned reflex
Complete the following sentence with appropriate Word
The control of reflex action is through:
Reflex actions are mediated through ____________.
Which of the following is not an involuntary action?
Why have reflex arcs evolved in animals?
Given alongside is a partial diagrammatic representation of a certain phenomenon pertaining to the nervous system.
 |
- Name the parts numbered 1-7.
- Name the phenomenon that the diagram depicts and define it.
- Give the technical term for the point of contact between two nerve cells.
- Name the parts not shown in the diagram that should be included to complete the pathway of the phenomenon.
